2291559856128 has 576 divisors, whose sum is σ = 7061329548000. Its totient is φ = 734189322240.

The previous prime is 2291559856123. The next prime is 2291559856133. The reversal of 2291559856128 is 8216589551922.

2291559856128 is a `hidden beast` number, since 2 + 2 + 9 + 1 + 5 + 5 + 9 + 8 + 5 + 612 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (2291559856123) and next prime (2291559856133).

It is a tau number, because it is divible by the number of its divisors (576).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291559856123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8272779126 + ... + 8272779402.

Almost surely, 2^{2291559856128} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2291559856128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3530664774000).

2291559856128 is an abundant number, since it is smaller than the sum of its proper divisors (4769769691872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2291559856128 is an equidigital number, since it uses as much as digits as its factorization.

2291559856128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 412 counting only the distinct ones).

The product of its digits is 31104000, while the sum is 63.

The spelling of 2291559856128 in words is "two trillion, two hundred ninety-one billion, five hundred fifty-nine million, eight hundred fifty-six thousand, one hundred twenty-eight".